== sanity test 248c: verify whole file read behavior ===== 21:57:58 (1788832678)
llite.lustre-ffff935ae48ca800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff935ae48ca800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.92949 seconds
llite.lustre-ffff935ae48ca800.read_ahead_stats=
snapshot_time                       1788832688.279918675 secs.nsecs
start_time                          1788832680.831774891 secs.nsecs
elapsed_time                        7.448143784 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
llite.lustre-ffff935ae48ca800.read_ahead_stats=clear
llite.lustre-ffff935ae48ca800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.34296 seconds
llite.lustre-ffff935ae48ca800.read_ahead_stats=
snapshot_time                       1788832696.242991553 secs.nsecs
start_time                          1788832688.324395620 secs.nsecs
elapsed_time                        7.918595933 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
Test passed on attempt 0
llite.lustre-ffff935ae48ca800.max_read_ahead_whole_mb=4